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Old 04-13-2009, 08:23 PM   #1
cgreiner
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Interesting. I still have not fixed this problem with my car either. Sorry.

I knew I had a faulty CPS resulting in an oil leak so I changed that. I figured maybe the issue was that I was low on oil and it just coincidently occurred when it rained - often. Not so....

My car would also drop idle just like yours and then violently recover as you know from the earlier post. It would also not seem to occur when I kept RPMS above 3200 or so. Does yours behave similarly?

What is most interesting though is that you have a hole in your downpipe as do I. Now, if I get into the turbo hard, or have a 20 min + drive, my knock sensor and idle control (ICS) have been giving me errors. The car runs great, as long as there is no rain, but I do get a 51 and 52 error code if I drive rough or long. I am guessing that I am producing a high level of admissions under my hood through my downpipe and it is messing with the system? This would sensibly occurs with either high RPMS or over time in traffic. Any merit to this or am I insane?

Maybe that behavior is just a sign that your ICS is going out?

Please let me know if you figure it out as I will be working on it as well over the next few weeks.
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Old 04-14-2009, 03:55 AM   #2
sephir_07
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today i tore down the top end again and found hairline fractures in the spark plugs.
so im getting more friday. ill let you know how it goes man
maby ill remove the hood and drive around like that when i get new plugs. this would let us know if its the leak messing with our sensors.
let me know what you come up with.

and yes as soon as i get to 2000 rpm trouble sets in... then beyond 3000 its great!
maby we have faulty coil packs?
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Old 04-14-2009, 12:53 PM   #3
cgreiner
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I was suspecting spark plug issues as well. Maybe a valve cover gasket leak drowning them in oil. I have hte plugs, just have not checked the old ones or made the switch as of yet.

I should also be replacing my down pipe in the near future so that should help answer the emissions questions too.
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Old 04-15-2009, 05:00 AM   #4
sephir_07
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hte plugs whats that?

im putting bosh platnim in my car
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Old 04-15-2009, 12:57 PM   #5
cgreiner
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typo "the" not "hte"
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Old 04-15-2009, 07:44 PM   #6
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ok man i changed all plugs and took a tooth brush and carb cleaner to all my intake and boost pipes. car runs like a champ now yay!
now go forth and change em plugs lol
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Old 05-03-2009, 08:11 PM   #7
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ok... that did not work either. im still having the same problem... somone plz help. if you dont know what im talking about look at my earlyer posts on this thread.
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